<template>
  <div class="app-header-sticky" :class="{show:y>78}">
    <div class="container" v-show="y>78">
      <RouterLink class="logo" to="/" />
      <AppHeaderNav />
      <div class="right">
        <RouterLink to="/">品牌</RouterLink>
        <RouterLink to="/">专题</RouterLink>
      </div>
    </div>
  </div>
</template>

<script>
import AppHeaderNav from './app-header-nav'

import { useWindowScroll } from '@vueuse/core'
export default {
  name: 'AppHeaderSticky',
  components: {
    AppHeaderNav
  },
  setup () {
    // 记录y轴高度
    const { y } = useWindowScroll()
    //   // 页面滚动更新
    //   onMounted(() => {
    //     window.onscroll = () => {
    //       const scrollTop = document.documentElement.scrollTop
    //       y.value = scrollTop;
    //     }
    //   })

    return {
      y
    }
  }
}

</script>

<style scoped lang='less'>
  .app-header-sticky {
    width: 100%;
    height: 80px;
    position: fixed;
    left: 0;
    top: 0;
    z-index: 999;
    background-color: #fff;
    border-bottom: 1px solid #e4e4e4;
    transform: translateY(-100%);
    opacity: 0;

    &.show {
      transition: all 0.3s;
      transform: none;
      opacity: 1;
    }

    .container {
      display: flex;
      align-items: center;
    }

    .logo {
      width: 200px;
      height: 80px;
      background: url(../assets/images/logo.png) no-repeat right 2px;
      background-size: 160px auto;
    }

    .right {
      width: 220px;
      display: flex;
      text-align: center;
      padding-left: 40px;
      border-left: 2px solid @xtxColor;

      a {
        width: 38px;
        margin-right: 40px;
        font-size: 16px;
        line-height: 1;

        &:hover {
          color: @xtxColor;
        }
      }
    }
  }

</style>
